A50 ml sample of calcium hydroxide solution required 19.50 ml of 0.1050n hcl titration. calculate the amount of calcium hydroxide in the 50 sample?

The reaction of calcium hydroxide (Ca(OH)2) and hydrochloric acid (HCl) is:
Ca(OH)2 + 2HCl --> CaCl2 + 2H2O. So the amount of calcium hydroxide in the sample is ((19.50ml HCl)/1000) x 0.1050 mol/L 
From the balanced equation above: (1 mol Ca(OH)2 / 2 mol HCl) 
Calculating the amount of Ca(OH)2 in the 50ml sample, multiply with the molar mass: 
((19.50ml HCl)/1000) x 0.1050 mol/L x (1 mol Ca(OH)2 / 2 mol HCl) x 74.039 g/mol

6because i no yea yea

Answer:

a. energy is absorbed in the reaction.

explanation:

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.